Information indication method, repeater and network device

Abstract

A repeater includes: a mobile termination configured to communicate with a network device via a control link to receive control information; and, a forwarding entity, configured to perform amplifying-and-forwarding of uplink (UL) and/or downlink (DL) radio frequency (RF) signals between the network device and a terminal equipment via a backhaul link and an access link, a behavior of the forwarding entity being controlled according to the control information received by the mobile termination, wherein, states of the forwarding entity include ON state to transmit signals and OFF state to not transmit signals; wherein the control information includes a first information used for indicating a time domain resource and a second information used for indicating a beam for the access link by indicating a beam index of the beam.

1 . A repeater, comprising:
 a mobile termination configured to communicate with a network device via a control link to receive control information; and,   a forwarding entity, configured to perform amplifying-and-forwarding of uplink (UL) and/or downlink (DL) radio frequency (RF) signals between the network device and a terminal equipment via a backhaul link and an access link, a behavior of the forwarding entity being controlled according to the control information received by the mobile termination, wherein, states of the forwarding entity include ON state to transmit signals and OFF state to not transmit signals;   wherein the control information includes a first information used for indicating a time domain resource and a second information used for indicating a beam for the access link by indicating a beam index of the beam, and the forwarding entity is controlled to be in the ON state in the time domain resource indicated by the first information and associated with the beam indicated by the second information, wherein transmitter OFF power is a power in the OFF state according to a frequency range (FR).   
     
     
         2 . The repeater according to  claim 1 , wherein, if the frequency range (FR) is a FR1, transmitter OFF power for downlink and transmitter OFF power for uplink are different. 
     
     
         3 . The repeater according to  claim 1 , wherein, if the forwarding entity operates the frequency range (FR) as a FR1, for downlink, transmitter OFF power is less than −85 dBm/MHz; for uplink, transmitter OFF power is less than −50 dBm/(SCS×(12×N RB +1)/1000) MHz, where SCS is Sub Carrier Spacing in kHz, N RB  is the number of resource blocks; and,
 if the forwarding entity operates the frequency range (FR) as a FR2, transmitter OFF power is less than −36 dBm/MHz. 
 
     
     
         4 . The repeater according to  claim 3 , wherein the transmitter OFF power is a mean power measured over a time length during the OFF state, the time length is related to the SCS. 
     
     
         5 . The repeater according to  claim 3 , wherein if the forwarding entity operates the frequency range (FR) as a FR1, for downlink, transmitter OFF power is less than −85 dBm/MHz per antenna connector; for uplink, transmitter OFF power is less than −50dBm/(SCS×(12×N RB +1)/1000) MHz per antenna connector. 
     
     
         6 . The repeater according to  claim 1 , wherein the forwarding entity supports to change from the OFF state to the ON state or to change from the ON state to the OFF state. 
     
     
         7 . The repeater according to  claim 6 , wherein a requirement for a transient period is different according to frequency ranges (FR), the transient period is a time period during which the forwarding entity is changing from the OFF state to the ON state or from the ON state to the OFF state. 
     
     
         8 . The repeater according to  claim 7 , wherein, if the forwarding entity operates the frequency range as a FR1, a transient period is shorter than 10 us, if the forwarding entity operates at FR2, a transient period is shorter than 3 us. 
     
     
         9 . The repeater according to  claim 1 , the control information includes a DCI format with CRC scrambled by an NCR-RNTI which is monitored in USS sets. 
     
     
         10 . A network device, comprising:
 a transmitter configured to transmit control information to a repeater via a control link, a behavior of a forwarding entity of the repeater being controlled according to the control information, wherein, states of the forwarding entity include ON state to transmit signals and OFF state to not transmit signals;   wherein the control information includes a first information used for indicating a time domain resource and a second information used for indicating a beam for the access link by indicating a beam index of the beam, and the forwarding entity is controlled to be in the ON state in the time domain resource indicated by the first information and associated with the beam indicated by the second information, wherein transmitter OFF power is a power in the OFF state according to a frequency range (FR).   
     
     
         11 . A communication system, comprising a repeater and a network;
 wherein the repeater is configured to communicate with the network device via a control link to receive control information; and configured to perform amplifying-and-forwarding of uplink (UL) and/or downlink (DL) radio frequency (RF) signals between the network device and a terminal equipment via a backhaul link and an access link, a behavior of a forwarding entity of the repeater being controlled according to the control information received by a mobile termination of the repeater, wherein, states of the forwarding entity include ON state to transmit signals and OFF state to not transmit signals; and   wherein the control information includes a first information used for indicating a time domain resource and a second information used for indicating a beam for the access link by indicating a beam index of the beam, and the forwarding entity is controlled to be in the ON state in the time domain resource indicated by the first information and associated with the beam indicated by the second information, wherein transmitter OFF power is a power in the OFF state according to a frequency range (FR).